Method of making a steel crossbeam which crossbeam forms a component of a bumper for motor vehicles, and crossbeam
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United States of America Patent
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Apr 27, 2004
Grant Date -
Jun 19, 2003
app pub date -
Jan 29, 2003
filing date -
Mar 20, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method of making a steel crossbeam for use as component of a bumper for motor vehicles, a composite element is formed by attaching sheet metal strips in parallel disposition onto a broadside of a steel sheet strand across an entire length thereof, whereby the sheet metal strips have a width which is narrower than a width of the steel sheet strand. The composite element is then shaped through roll-forming in a direction transverse to the longitudinal extent of the composite element into a crossbeam.
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